We're going to solve 1398 multiplied by 6231
1398 × 6231 = 6231 × (1398)
+ 6231 × 8 that is equal 49848
+ 6231 × 90 producing 560790
+ 6231 × 300 that is equal 1869300
+ 6231 × 1000 yielding 6231000

= 8710938
